FHWA NHI 2009 MSE Wall Manual

The new version of the manual will be updated to incorporate the Load and Resistance Factor Design (LRFD) approach as well as new design procedures for shored MSE walls (SMSE) and walls used with existing stable features (ie. a MSE wall in front of a CIP wall).

The team retaining by the FHWA is lead by Ryan R. Berg of Ryan R. Berg and Associates and includes Barry R. Christopher and Naresh Samtani of NCS Consultants. Source: NCS Consultants, LLC website.

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[Update Jan 28, 2008] It appears as if the Port of Seattle is in some hot water for some alleged shady dealings with one of the contractors on the project. More at Seattle Times. [/Update]

Erosion Control magazine has an interesting article on MSE Walls. I think the tie-in of MSE Walls with erosion control is a little questionable (they did mention wall drainage a few times), but the article highlights several interesting projects, particularly the Seattle-Tacoma Airport or Sea-Tac Third Runway Project retaining walls. The West wall for that project is the tallest MSE Wall in North America, 130-ft at its highest point. More after the break. (Photo by Sea-Tac Airport)

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Our first article from Robert Thompson with Dan Brown and Associates. A project profile of a challenging project invoving a railroad spur for a quarry. It involved ground improvement, soil nailing, and MSE walls.

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Since March of 2003, the FHWA’s Geotechnical Engineering Circular Number 7 (GEC No. 7) has been the standard reference document for design and construction of soil nail retaining walls in roadway applications, and really in […]